LOL cpeteraf Hi
You will be fine........ FAI and your age what a bugger!! Mine set in my late 30's early 40's and there was no real substantial help due FAI is not a degenerate condition but can itself can degenerate the hip joint. My personal experience anyway. Add injury on top of that and your hip joint changes but you never loose enough cartilage to be bone on bone. Maybe yours did I am not sure but every time I went for an XRAY they reported I was a young man with young man hips....... Yeah Right........ Ok what I am saying is I have empathy and sympathy for you as I am seeing on this site more and more FAI experiences.
Example for years and years I had pain from the back always up the to the shoulders and mostly when standing. The back muscles were working real hard to compensate way back then so how long I put up with it is unsure years and years when I look back. I don't get those issues anymore now amazing...
I had my bilateral last year April. Finished half marathon in the rain the other day and getting fitter and fitter by the week. My hips (muscles) took a massive blow after all the weakness of years of suffering and pain (7 years on crutches) bilateral resection pincer dominant, also Scoping right hip x 2 all did not help.
Then Dr Koen De Smet Bilateral resurfacing. So now I am back climbing hills. I still have a long way to go but it seems on-wards and upwards from here. Ok exercises I found help due your muscles are weak from FAI already is just a pure simple squat..... x 20 each day.
If you can get a rubber bungee - rope and wrap it around the table or a fixed structure hold onto it and use it for stability and squat down as far as you can. This gets the range of movement up and keeps the Glut max and Quads working.
Use then the bungee for all other exercises you can do with the hip. Flexion, glut med, Glut min, just do it to keep them moving within you pain tolerance. Later on you may find your own exercise Pattern.
I have had a little help in rehab but mostly it is self help that I am finding once the hip starts working again is to help it out in that region.
To be most positive I lost my job I love back in 2008. I am now looking back for employment so that in itself is pretty cool when told in 2008 there was no help for me I would never walk properly again in life "except it". So its pretty cool now to be in this position, lots to look forward to.
FAI is not a cool thing its massively painful and corrupts your life with very little answers only to the very experienced.
The jitters is normal.
Good luck your doing the right thing get the top specialist that do this all the time to help you out due you want it right and hopefully those hips last the rest of your life. I am being positive they will if positioned correctly.
Hope this calms your nerves...
again good luck....
Cheers K